Self-closing door.



Patented Feb. 15', 1916.

J. L. ORNESS.

SELF CLOSING DOOR.

APPLICATION FILED APR. 1.1, 1915.

B L1 i/ (IO/m L; 0777663 V64; Gimmes mu puuocmva c0., WASHINGTON. b. c.

out as desired and the matlcally after they enter or leave the build- F 'J'OHNVLQ ORNESS, or LA Mo n nNoRTHnaKoTA;

snLr-o'Losme noon.

7 To all whom it may concern." V

Be it known that I, JOHN L. ORNESS, a

citizen of the United States, :residing at LaMoure, 1n the countyof Lamoure and State of North Dakota, have invented cer tainynew and useful Improvements in Self- Closmg Doors; and I do declare'the following to be a full, clear, andekaet'description V of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to doors and more particularly to .the means for opening them.

The primary object of the invention is to provide a door of this character especially constructed for use on hog houses to permit the swine to open the door andipass in and door to close automg, A 7

Another object of the invention is to provide a door of thischaracter which is simple and efficient in construction, which has no parts to get out of order, and which will move into closed position immediately after the passage of the animal therethrough and may be readily opened by the animal from either side.

lVith these and other objects in view, the

invention consists of certain novel features of construction, and the combination and arrangement of parts as willbe more fully described and claimed. I I

In the accompanying drawings: Figure 1 represents a front elevation of'a portion of the front wall of a house equipped with this improved door showing it in closed position; Fig. 2 is a horizontal section thereof taken on the line 2-2 of Fig. 1; Fig. 3 is a detail perspective view of the door taken from the inside. F ig. at is a horizontal section of the door taken on line 4:1 of Fig. 1.

While it is to be understood that this improvement may be applied to any. self closing door it is shownin the. embodiment illustrated applied to a door 2 hinged atits upper edge to the upper end wall of a door opening 1 and of a size to shut within said door opening so that the inner and outer faces of the door and the side wall of the building will be arranged flush with each other when the door is in closed position,

but not necessarily so. This door 2, is pro- 7 V self-closing closing movement of the door.

vided on its opposite side edges of the inner face thereof with beveled or" cutaway'portions 3 preferably disposed near the lower end and which are designed tofacilitate the outward opening of the door' from the in side by the hogs which maypush against the door on the inner face'thereof and thus cause it to swing outwardly, the tendency .ofthe hogs being to push against the re snoutsmay readily be inserted. 1

"Secured to the outer face of the door 2 cessed portion of the door into which their A Specification of Iietters Patent. Patentedlieb, Application filed Apri1 17,"1915. serial' voj 22,148. I '7 along the opposite side edges thereof are lateral projections here shown in the form of outwardly inclined wings at and 5 which project beyond the side edges of the door and overlap the adjacent edges in the opening 1 and in additlon to forming door opening elements for engagement by the animals 7 serve as stops for limiting the inward or These wings 4 and 5 are also recessed on their inner faces as shown at 6 to facilitate thepassage between them and the side wall of the build-V ing of the-,sn'outs of'the hogs sothatthe'y' may readily force open the door when they desire to enter from;the outside, it being necessary that sufiiclent space lJBIJIOXHClfiCl between these wings and the side wall ofv the building for the insertion of the snouts or feet of the animals to enable them to readily open the door. These'wings 4L and 5' as shown terminate at their upper ends below the hinged connection of the door with the building and in the form "shown are j designed also toserve as weights for the door to cause itto drop downwardly into closed position immediately the animal passes from-under it.

From the above descriptiom'itwill be obvious that'this door is composed of three partsyto wit, the door proper and the two wings, which latter while shown attached may be ma'deintegral therewith if desired,

and the doorimay be constructed of any' suitable or'desired material, either'wood or metal, and hence there are no-partswhich could possibly get out of order, and the door as'shown willswing automatically into closed position by the force of gravity im mediately the obstruction passing under it at all times except during the inward or I is removed, and thus will be tightly closed outward passage of an animal through the V V door, the gist of the invention residing the means provided :to enable the animals-toopen the door; V I

.il claim as my invention l. The combinationof a wallhaving a door opening therein, a self-closing doo for said opening, and elements carriedbysaid door at opposite sides thereof and inclined laterally to 'overla'p the side edges 'of the door opening.

T 2 The combination ,of a wall having a doe; opening therein, a self-closing ,door for said opening and a laterally inclined wing carried by oneedge of said door forming an opening element itoraactuation by the nose Ol..'EOOl1 of an" animal. 7

3.1Tl1e combination ofa wall having a:

door opening therein, ,a self-closing d001- forsaid openinmand outwardly inolinedl wings'at opposite edges of said dooiiform- Copiesof this patent naybeobtained for having: their inner yfaees1 =reeessedrijto ifaeil five eentmeach, by -e ddressing :the ,Co mm i ssioner of .Iatents, Washington, D. 0., a .l

ing opening elements therefor, said. wingsgzf tatejv the engagement of the nosel of {an :anif nial therewith from :one side.

4. The combinatidnslot a ,wall havin'g aiz s i I v door-opening therein, a Selii-{closing ,dOOfzfOIt said 7 opening; outwardly inclined wings the oppos te side edges ,of said :do'or formin opening elements thereidr, said iwi-ngs and. 11.

v doo yr;hav1ng their inner'ifaoesrat the, side, E'3f0 edges thereof recessedjtoiffac litate' the open-aw Witnesses T: SeHUNT,

H. HO'DEM: 

